T+A HA 200 Headphone Amplifier Black

Overview

The impedance of the three headphone outputs can even be matched to the
headphones in use and the individual sound ideas. A crossfeed function for
creating a sound stage image positioned in front of the head is available on
request. The high-quality mains sections – one digital, one analogue with two
separate torroidal transformers- provide very generous reserves of power.

The digital section is fitted with the proprietary T+A True 1-Bit digital /
analogue converter, which provides an incredible DSD 1024 for Bitstream, and
the T+A quadruple converter with 32 Bit / 768 kHz for PCM. Like all current
T+A DACs the new HA 200 also features a sophisticated and completely separate
decoder architecture for DSD and PCM, ensuring that all digital formats are
decoded to the finest standards.
The design and materials of the case harmonise perfectly with the unique
electronics. The HA 200 is significantly larger and heavier than other
headphone amplifiers, but this is not surprising given the more than 2300
components and the sophisticated HV technology. All the case components are
produced from non-magnetic aluminium, and the front panel is machined from
solid plate material – just like the HV series. Accurate QPPM metering
instruments and a large screen supply important system information, and
provide an accurate indication of operating conditions. The FM8 IR remote
control controls all functions of the HA 200.
We have designed the HA 200 in every respect with no hint of compromise and
without regard to cost, for we had only one goal in mind: musical reproduction
to the very highest standard of perfection.

Design Philosophy

We insist that our headphone amplifiers should be capable of optimum sound
quality, and for this reason we are developing them in a focussed manner,
matching either dynamic and magnetostatic or electrostatic headphones. This
decision obliges us to consider the completely different requirements
regarding the output stages. The HA 200 is conceived to handle dynamic and
magnetostatic headphones, and its entire circuit topology and technology are
designed to fulfil the special requirements of these types of transducer. This
is the only means of obtaining truly unique results in terms of sound quality.
Compared with loudspeakers, the impedance bandwidth of headphones is
substantially wider, and this presents a genuine challenge to the amplifier
design. Low-impedance types require high currents, whereas high-impedance
alternatives draw low currents, but require an extremely stable voltage.

This in turn means that the output stage must be capable of delivering
relatively high currents, while the transformer and the mains section must be
extremely stable and constant. Our amplifier has also been fitted with a
circuit, which makes different output impedances freely selectable for each of
the three outputs (6.3 mm jack, 4.4 mm Pentaconn, XLR-4 pin), so that the
headphones can be optimally adapted to the individual sound ideas.
The last few years have brought a very significant change in the field of
application of headphone amplifiers. In the past they were usually connected
to the analogue output of a stereo system, utilising the system’s sources, but
nowadays we frequently find a preference for dedicated stand-alone devices.
That is why we have not only furnished our headphone amplifier with very high-
quality analogue inputs, but also installed digital inputs and converters of
the highest quality, which make it possible to exploit a vast range of digital
sources whilst maintaining very high standards of quality. The analogue and
digital sections are completely galvanically isolated, and each features its
own mains power supply. Our aim was to build a headphone amplifier which
completely satisfied our very high requirements in terms of sound quality. The
outcome of our efforts is a true thoroughbred: an exceptional device which
eschews integral digital sources completely, thereby eliminating even the
tiniest of adverse influences in the analogue section of the amplifier.
The HA 200 offers a wide range of high-quality connection facilities on the
input and output side, making the amplifier a superb choice for music-
enthusiasts and professionals alike.

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